Earth - jennydebellis
... Can be estimated by the color they shine and their brightness Violet stars are very hot (short, fast wavelength of light) Red stars are cooler (longer, slower wavelength of light) Yellow stars (like the sun) are in between Most common elements in stars are H and He ...
... Can be estimated by the color they shine and their brightness Violet stars are very hot (short, fast wavelength of light) Red stars are cooler (longer, slower wavelength of light) Yellow stars (like the sun) are in between Most common elements in stars are H and He ...
Terrestrial planets
... • it is the brightest star in the sky at night • Size: 12,104 km in diameter ...
... • it is the brightest star in the sky at night • Size: 12,104 km in diameter ...
Which of the following represent the best explanation we currently
... is directly proportional to the cube of its semi-major axis. This law relates the amount of time for the planet to complete one orbit around the Sun to the planet’s average distance from the Sun. If we measure the orbital periods (P) in years and distances (a) in astronomical units, then the law mat ...
... is directly proportional to the cube of its semi-major axis. This law relates the amount of time for the planet to complete one orbit around the Sun to the planet’s average distance from the Sun. If we measure the orbital periods (P) in years and distances (a) in astronomical units, then the law mat ...
Astronomy Notes
... the Steady State theory. In this theory the Universe does not change very much with time. Light takes a long time to travel across the Universe, when we look at very distant galaxies, we look back in time. Galaxies a long time ago are different from those today, showing that the Universe has cha ...
... the Steady State theory. In this theory the Universe does not change very much with time. Light takes a long time to travel across the Universe, when we look at very distant galaxies, we look back in time. Galaxies a long time ago are different from those today, showing that the Universe has cha ...
Problems in Chapter 13
... error by + or – 0.003 arc seconds. What limits can you set on its distance. Answer: p(Betelgeuse) = 0.005 arc seconds. Therefore its distance is d = 1/p = 200 pc. The error in this measurement is +/–0.003", so we have to add and subtract this figure from the parallax angle to give the lower and uppe ...
... error by + or – 0.003 arc seconds. What limits can you set on its distance. Answer: p(Betelgeuse) = 0.005 arc seconds. Therefore its distance is d = 1/p = 200 pc. The error in this measurement is +/–0.003", so we have to add and subtract this figure from the parallax angle to give the lower and uppe ...
STUDY QUESTIONS #10 The MILKY WAY GALAXY diameter face
... 1. What is the diameter of our Galaxy, the Milky Way? 2. How far from the center of the Galaxy is the solar system? What else besides stars are in the Galaxy? 3. Label the following where appropriate: spiral arms, disk, halo, bulge, globular clusters, galactic center 4. What is the evidence for a ma ...
... 1. What is the diameter of our Galaxy, the Milky Way? 2. How far from the center of the Galaxy is the solar system? What else besides stars are in the Galaxy? 3. Label the following where appropriate: spiral arms, disk, halo, bulge, globular clusters, galactic center 4. What is the evidence for a ma ...
Topic IV: Motions of the Earth, Moon and Sun
... attraction of the moon and the sun. Explain the difference between neap and spring tides and during which phases of the moon each occurs. Explain the difference between lunar and solar eclipses and during which phases of the moon each can occur. Explain why the moon rises 50 minutes later each ...
... attraction of the moon and the sun. Explain the difference between neap and spring tides and during which phases of the moon each occurs. Explain the difference between lunar and solar eclipses and during which phases of the moon each can occur. Explain why the moon rises 50 minutes later each ...
Standard candles
... In astronomy, a standard candle is a source that has a known luminosity. luminosity = total power output, measured in watts (W) or solar luminosities (L⊙). 1 L⊙ = 3.84 x 1026 W ...
... In astronomy, a standard candle is a source that has a known luminosity. luminosity = total power output, measured in watts (W) or solar luminosities (L⊙). 1 L⊙ = 3.84 x 1026 W ...
ONLINE practice exam
... From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this information to estimate the Hubble constant. (c) Use this information to estimat ...
... From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this information to estimate the Hubble constant. (c) Use this information to estimat ...
Name the terms - St John Brebeuf
... 5. Impact craters on Earth are caused by _________. 6. The common name for the aurora borealis is the __. 7. The outer planets are also known as the _______ due to their mass and composition. ...
... 5. Impact craters on Earth are caused by _________. 6. The common name for the aurora borealis is the __. 7. The outer planets are also known as the _______ due to their mass and composition. ...
Patterns in the Night Sky Constellation: a grouping of stars, as
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
... Directly above the equator; appear motionless in the sky, which makes them useful for communications and other commercial industries because they can be linked to antennas on Earth. Communication industries use geostationary satellites for satellite broadcast television and radio. ...
Solar System and Inner Planets
... Solar System and Inner Planets planet-large body of matter that revolves around the sun sun-93 million miles away from Earth the closest star to earth inner planets-planets that are closest to the sun Mercury Venus Earth Mars Mercury-closest to the sun NOT the hottest planet does NOT h ...
... Solar System and Inner Planets planet-large body of matter that revolves around the sun sun-93 million miles away from Earth the closest star to earth inner planets-planets that are closest to the sun Mercury Venus Earth Mars Mercury-closest to the sun NOT the hottest planet does NOT h ...
Space Unit Test - grade 6 science
... 3. I am the proud owner of a huge Red Spot, which is actually an atmospheric storm traveling 225 mph. I am ___________________. 4. I am called the “Sideways Planet” because my axis is tilted at roughly 90° and my surface frozen methane crystals. I am ___________________. 5. I take 88 days to orbit a ...
... 3. I am the proud owner of a huge Red Spot, which is actually an atmospheric storm traveling 225 mph. I am ___________________. 4. I am called the “Sideways Planet” because my axis is tilted at roughly 90° and my surface frozen methane crystals. I am ___________________. 5. I take 88 days to orbit a ...
What Is a Light
... (40,000,000,000,000) kilometers from Earth. Such a large number is difficult to understand and use in calculations. For this reason, astronomers use a different unit of measurement when they talk about distances between stars. ...
... (40,000,000,000,000) kilometers from Earth. Such a large number is difficult to understand and use in calculations. For this reason, astronomers use a different unit of measurement when they talk about distances between stars. ...
16SolMW - NMSU Astronomy
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
... Scale models • To work out a scale model, calculate the relative sizes of two objects by dividing the actual sizes, then multiply model size of one by the relative sizes • In scale model where Sun is a 1m diameter ball, Jupiter and Saturn are about 10cm diameter (softballs), Earth and Venus about 1 ...
Solutions to test #1 taken on Monday
... f) ___T____ Six Apollo missions landed on the Moon. g) ___T____ The seasons on Earth are caused by Earth’s tilt relative to its orbit. h) ___F____ The star Polaris (also called the North Star) rises in the East and sets in the West as viewed from Redlands. i) ____F___ Volcanism is an exogenic surfac ...
... f) ___T____ Six Apollo missions landed on the Moon. g) ___T____ The seasons on Earth are caused by Earth’s tilt relative to its orbit. h) ___F____ The star Polaris (also called the North Star) rises in the East and sets in the West as viewed from Redlands. i) ____F___ Volcanism is an exogenic surfac ...
Science 9 Unit 5: Space Name:
... Adaptive optics- Is the technology that adjusts the mirror od a telescope, or adjusts the image of a telescope, to cancel the effects of the constant changes in Earth’s atmosphere. Triangulation- A method of measuring distance indirectly by creating an imaginary triangle between an observer and an o ...
... Adaptive optics- Is the technology that adjusts the mirror od a telescope, or adjusts the image of a telescope, to cancel the effects of the constant changes in Earth’s atmosphere. Triangulation- A method of measuring distance indirectly by creating an imaginary triangle between an observer and an o ...
The Solar System Sections 16.1-16.8
... • A star with a large planet orbiting about it will have a small wobble superimposed on its motion as a result of gravitational effects • This change in motion (the wobble) is likely to be very slight, but in some cases may be detected as a Doppler shift of the star’s spectrum • As the star approach ...
... • A star with a large planet orbiting about it will have a small wobble superimposed on its motion as a result of gravitational effects • This change in motion (the wobble) is likely to be very slight, but in some cases may be detected as a Doppler shift of the star’s spectrum • As the star approach ...
Today`s Powerpoint
... A tenth planet known to the ancients that would hit us by end of the year would be visible to astronomers for past decade Why the hype? ...
... A tenth planet known to the ancients that would hit us by end of the year would be visible to astronomers for past decade Why the hype? ...
Introduction Notes - Sunflower Astronomy
... When converting an angle with both minutes and seconds of arc divide the seconds of arc by 3600 and add to the number of degrees. ...
... When converting an angle with both minutes and seconds of arc divide the seconds of arc by 3600 and add to the number of degrees. ...
Final Exam Earth science
... making up the galaxies. As galaxies move away, the light waves that reach Earth are stretched out, making them appear to have longer wavelengths. This is caused by the Doppler effect. The brightness of a star depends on its size and temperature. How bright a star appears on Earth depends on how far ...
... making up the galaxies. As galaxies move away, the light waves that reach Earth are stretched out, making them appear to have longer wavelengths. This is caused by the Doppler effect. The brightness of a star depends on its size and temperature. How bright a star appears on Earth depends on how far ...